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Symmetry 2017, 9(12), 312;

Chaotic Dynamical State Variables Selection Procedure Based Image Encryption Scheme

Department of Mathematics, Quaid-i-Azam University, Islamabad-45320, Pakistan
Faculty of Economics and Management, University of Szczecin, Mickiewicza 64, 71-101 Szczecin, Poland
Department of Mathematics, University of Management and Technology, Lahore-54770, Pakistan
Department of Artificial Intelligence method and Applied Mathematics in the Faculty of Computer Science and Information Technology, West Pomeranian University of Technology in Szczecin, Żołnierska 49, 71-210 Szczecin, Poland
Author to whom correspondence should be addressed.
Received: 30 September 2017 / Revised: 22 November 2017 / Accepted: 6 December 2017 / Published: 11 December 2017
(This article belongs to the Special Issue Emerging Data Hiding Systems in Image Communications)
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Nowadays, in the modern digital era, the use of computer technologies such as smartphones, tablets and the Internet, as well as the enormous quantity of confidential information being converted into digital form have resulted in raised security issues. This, in turn, has led to rapid developments in cryptography, due to the imminent need for system security. Low-dimensional chaotic systems have low complexity and key space, yet they achieve high encryption speed. An image encryption scheme is proposed that, without compromising the security, uses reasonable resources. We introduced a chaotic dynamic state variables selection procedure (CDSVSP) to use all state variables of a hyper-chaotic four-dimensional dynamical system. As a result, less iterations of the dynamical system are required, and resources are saved, thus making the algorithm fast and suitable for practical use. The simulation results of security and other miscellaneous tests demonstrate that the suggested algorithm excels at robustness, security and high speed encryption. View Full-Text
Keywords: chaotic maps; chaotic dynamical systems; time-varying delays chaotic maps; chaotic dynamical systems; time-varying delays

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Bashir, Z.; Wątróbski, J.; Rashid, T.; Zafar, S.; Sałabun, W. Chaotic Dynamical State Variables Selection Procedure Based Image Encryption Scheme. Symmetry 2017, 9, 312.

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